Today we went to COSI as a reward for Alex being extra-good lately. The kids got to make bubbles, make faces in a time-lapse camera, balance in the wacky gravity room, and watch a presentation about the extreme science of combustion. They blew up balloons of hydrogen, lit several salts to see what color they are when they burn (copper is green for example), and made dry ice glow by burning magnesium inside it.
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